CN114069207B - Antenna structure and electronic equipment - Google Patents
Antenna structure and electronic equipment Download PDFInfo
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- CN114069207B CN114069207B CN202010746041.0A CN202010746041A CN114069207B CN 114069207 B CN114069207 B CN 114069207B CN 202010746041 A CN202010746041 A CN 202010746041A CN 114069207 B CN114069207 B CN 114069207B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2291—Supports; Mounting means by structural association with other equipment or articles used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/25—Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
- H01Q5/364—Creating multiple current paths
- H01Q5/371—Branching current paths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0464—Annular ring patch
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Support Of Aerials (AREA)
- Details Of Aerials (AREA)
Abstract
The present disclosure relates to an antenna structure and an electronic device. The antenna structure comprises a branch radiator, wherein the branch radiator comprises a plurality of first radiation modes; a ring-shaped radiator surrounding the stub radiator, the ring-shaped radiator including a plurality of second radiation patterns; one of the feed point and the grounding point is connected with the annular radiator, and the other is connected with the branch radiator; the antenna slot is arranged between the branch radiator and the annular radiator, the annular radiator and the branch radiator are coupled out of a coupling radiation mode through the antenna slot, and the coupling between the first radiation mode, the second radiation mode and the coupling radiation mode widens the radiation bandwidth of the antenna structure.
Description
Technical Field
The disclosure relates to the technical field of terminals, and in particular relates to an antenna structure and electronic equipment.
Background
With the development of communication technology, the wider channel bandwidth based on Wifi6E can greatly improve the current wireless network experience. Therefore, in order to configure an antenna covering a Wifi6E working frequency band in an electronic device, a wideband antenna needs to be arranged in the electronic device, and a method of widening a resonance bandwidth by increasing parasitic branches continuously increases the arrangement difficulty of other components and increases the assembly difficulty due to limited internal space of the electronic device.
Disclosure of Invention
The present disclosure provides an antenna structure and an electronic device to solve the deficiencies in the related art.
According to a first aspect of embodiments of the present disclosure, there is provided an antenna structure comprising:
a branch radiator comprising a plurality of first radiation patterns;
a ring-shaped radiator surrounding the stub radiator, the ring-shaped radiator including a plurality of second radiation patterns;
one of the feed point and the grounding point is connected with the annular radiator, and the other is connected with the branch radiator;
the antenna slot is arranged between the branch radiator and the annular radiator, the annular radiator and the branch radiator are coupled out of a coupling radiation mode through the antenna slot, and the coupling between the first radiation mode, the second radiation mode and the coupling radiation mode widens the radiation bandwidth of the antenna structure.
Optionally, the antenna structure covers a frequency band of Wifi 6E.
Optionally, the branch radiator is connected with the feed point, the branch radiator includes a first radiation branch located at one side of the feed point and a second radiation branch located at the other side of the feed point, and resonance frequencies generated by the first radiation branch and the second radiation branch are different.
Optionally, the annular radiator is connected to the ground point, and the first radiation mode includes a square quarter wavelength radiation mode, and the square quarter wavelength radiation mode generates resonance in a Wifi2.4G frequency band, and the wavelength is a free space wavelength corresponding to a center frequency of the Wifi 2.4G.
Optionally, the grounding point is arranged at an intersection point of a symmetry line of the annular radiator and any side length of the annular radiator, and the intersection point is a current strong point when the first radiation mode is a two-by-one wavelength radiation mode.
Optionally, the annular radiator includes one of a rectangular radiator, a circular annular radiator, a diamond radiator and a triangular radiator.
Optionally, the annular radiator includes a rectangular radiator, the side lengths of the rectangular radiator are all 0.09 wavelength, and the wavelength is a free space wavelength corresponding to the center frequency of the wifi 2.4g.
Optionally, the branch radiator includes a T-shaped radiating branch.
Optionally, the T-shaped radiation branches include a first radiation branch and a second radiation branch, where the length of the first radiation branch is 0.06 wavelengths, the length of the second radiation branch is 0.025 wavelengths, and the wavelengths are free space wavelengths corresponding to a center frequency of the wifi2.4 g.
According to a second aspect of embodiments of the present disclosure, there is provided an electronic device comprising an antenna structure as described in any of the embodiments above.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
as can be seen from the foregoing embodiments, the present disclosure uses the coupling between the plurality of first radiation modes of the annular radiator, the plurality of second radiation modes of the branch radiator, and the plurality of coupling radiation modes after the annular radiator and the branch radiator are coupled, so that the bandwidth of the antenna structure is widened, so that the antenna structure can cover the bandwidth of Wifi6E, and Wifi6E communication configured with the antenna structure is realized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic diagram illustrating a structure of an antenna structure according to an exemplary embodiment.
Fig. 2 is a return loss plot of the antenna structure of fig. 1.
Fig. 3 is a graph showing a current distribution diagram of a ring-shaped radiator in a radiation mode according to an exemplary embodiment.
Fig. 4 is a graph showing a current distribution diagram of a ring-shaped radiator in another radiation mode according to an exemplary embodiment.
Fig. 5 is a schematic dimensional view of an antenna structure according to an exemplary embodiment.
Fig. 6 is a partial schematic diagram of an electronic device, according to an example embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
Fig. 1 is a schematic diagram of an antenna structure 100 according to an exemplary embodiment. As shown in fig. 1, the antenna structure 100 may include a branch radiator 1, a loop radiator 2, a ground point 3, and a feed point 4, where the feed point 4 is connected to the branch radiator 1 and the ground point 3 is connected to the loop radiator 2, and in other embodiments, the feed point 4 may be connected to the loop radiator 2 and the ground point 3 may be connected to the branch radiator 1. The branch radiator 1 may include a plurality of first radiation modes, the resonant frequencies of the plurality of first radiation modes are not equal, in other words, the branch radiator 1 may be used to generate a plurality of resonances in different frequency bands, the loop radiator 2 may be disposed around the branch radiator 1, so as to form an antenna slot 4 between the branch radiator 1 and the loop radiator 2, the loop radiator 2 may include a plurality of second radiation modes, the resonant frequencies of the plurality of second radiation modes are not equal, that is, the loop radiator 2 may generate a plurality of resonant frequencies in different frequency bands, and the branch radiator 1 may be coupled with the loop radiator 2 through the antenna slot 4 to couple out a coupled radiation mode, where the resonant frequencies of the first radiation mode, the second radiation mode and the coupled radiation mode may be mutually coupled when the resonant frequencies are the same or similar, so as to widen the bandwidth of the antenna structure 100, for example, as shown in fig. 2, the graph 2 shows a graph of return loss curve of the antenna 100, where the ordinate is the return loss, the abscissa is the antenna frequency, the coordinate point is the coordinate 2, and the 3.376-3 Ghz (3.376 Ghz-6 Ghz) of the antenna structure is the communication coverage area of 6.37-6 Ghz (6 Ghz is the 6.6 Ghz).
As can be seen from the foregoing embodiments, the present disclosure uses the multiple first radiation modes of the annular radiator 2, the multiple second radiation modes of the branch radiator 1, and the coupling between the annular radiator 2 and the multiple coupling radiation modes of the branch radiator 2 after coupling, so that the bandwidth of the antenna structure 100 is widened, the antenna structure 100 can cover the bandwidth of Wifi6E, and Wifi6E communication configured with the antenna structure 100 is realized. Compared with the scheme that in the related art, the single-mode radiation branches utilize the parasitic branches to increase the resonance number and widen the bandwidth, the technical scheme disclosed by the invention does not need to increase the parasitic branches, is beneficial to miniaturization of the antenna structure 100 and arrangement of internal elements of electronic equipment configuring the antenna structure 100.
In this embodiment, after the feed point 4 is connected to the branch radiator 1, the branch radiator 1 may include a first radiation branch 11 located on one side of the feed point 4 and a second radiation branch 12 located on the other side of the feed point 4, where lengths of the first radiation branch 11 and the second radiation branch 12 are different, so that different resonances may be generated, that is, the first radiation branch 11 and the second radiation branch 12 may generate a first radiation mode with different resonance frequencies, and other resonance frequencies different from those of the first radiation branch 11 and the second radiation branch 12 may be generated by the whole branch radiator 1, so that the branch radiator 1 may generate multiple first radiation modes with different frequencies, which is beneficial to coupling between subsequent different radiation modes, and is beneficial to widening the bandwidth of the antenna structure 100.
The annular radiator 2 can be connected with the grounding point 3, for example, the annular radiator 2 can be connected with the grounding point 3 through a metal elastic sheet, and compared with the technical scheme that the branch radiator 1 is grounded, the antenna structure 100 can maintain more excellent antenna performance in a complex electromagnetic environment when the annular radiator 2 is grounded. By introducing the grounding point 3, a second radiation mode of the 2×1/4λ operation mode shown in fig. 3 can be introduced on the annular radiator 2, and Wifi2.4G resonance can be generated by the second radiation mode, that is, with the resonance at the coordinate point 1 (2.45, -19.736) shown in fig. 2, the antenna structure 100 can cover the frequency band of Wifi2.4G, and the electronic device configured with the antenna structure 100 can support Wifi2.4G communication. Wherein, λ is the free space wavelength corresponding to the center frequency of wifi 2.4g.
The grounding point 3 may be disposed at the intersection point of the symmetry line of the annular radiator 2 and any side length of the annular radiator 2, when the annular radiator 2 works in a 2×1/4λ working mode to generate an antenna signal of Wifi2.4G, as shown in fig. 4, the grounding point 3 is a strong current point, and when the annular radiator 2 works in a 2×1/2λ working mode to generate a first resonance of Wifi6E, the intersection point is also a strong current point, so that the introduction of the grounding point 3 does not affect the first resonance in the frequency band of Wifi6E, thereby reducing the correlation between Wifi6E and Wifi2.4G and reducing the mutual influence.
In the above-described respective embodiments, the ring-shaped radiator 2 may include one of a rectangular radiator, a circular ring-shaped radiator, a triangular radiator, and a diamond-shaped radiator. In particular, when the loop radiator 2 is a rectangular radiator, as shown in fig. 5, the side lengths of the rectangular radiator may be 0.09 λ, the branch radiator 1 may include a T-shaped radiation branch or an L-shaped radiation branch, etc., and the T-shaped radiation branch may be connected to the feed point 4, so that the T-shaped radiation branch may include asymmetric first and second radiation branches 11 and 12, the length of the first radiation branch 11 may be 0.06 λ, and the length of the second radiation branch 12 may be 0.025 λ. The branch radiator 1 and the ring radiator 2 in the above embodiments may be formed by laser forming, and the obtained antenna structure 100 is a laser formed antenna, so that the use of a frame structure of an electronic device may be avoided. As shown in fig. 6, the present disclosure further provides an electronic device, and fig. 6 is a partial schematic diagram of the electronic device 200. The electronic device may include a housing 201 and the antenna structure 100 described in any of the foregoing embodiments, where the antenna structure 100 may be formed on the housing 201 between the battery compartment 202 and the rear camera 203 by laser, and the antenna structure 100 is disposed between the battery compartment 202 and the rear camera 203, so that the antenna structure 100 is relatively closer to a middle area of the housing 201, and when a user holds the electronic device, the probability of covering the area is smaller, so that the influence of the user holding the electronic device on the radiation of the antenna signal of the antenna structure 100 may be reduced. Alternatively, in other embodiments, other locations on the housing 201 may be provided, and the disclosure is not limited in particular.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. An antenna structure comprising:
a branch radiator comprising a plurality of first radiation modes, the resonant frequencies of the plurality of first radiation modes being unequal, the branch radiator being configured to generate a plurality of resonances in different frequency bands;
a ring-shaped radiator surrounding the branch radiator, the ring-shaped radiator including a plurality of second radiation modes, the resonance frequencies of the plurality of second radiation modes being unequal, the ring-shaped radiator being configured to generate a plurality of resonances in different frequency bands;
one of the feed point and the grounding point is connected with the annular radiator, and the other is connected with the branch radiator;
the antenna slot is arranged between the branch radiator and the annular radiator, the annular radiator and the branch radiator are coupled out of a coupling radiation mode through the antenna slot, and the coupling between the first radiation mode, the second radiation mode and the coupling radiation mode widens the radiation bandwidth of the antenna structure.
2. The antenna structure of claim 1, wherein the antenna structure covers a frequency band of Wifi 6E.
3. The antenna structure of claim 1, wherein the stub radiator is connected to the feed point, the stub radiator including a first radiating stub on one side of the feed point and a second radiating stub on the other side of the feed point, the first radiating stub and the second radiating stub producing different resonant frequencies.
4. The antenna structure of claim 1, wherein the loop radiator is connected to the ground point, and the first radiation pattern comprises a square quarter wavelength radiation pattern that produces resonance in a Wifi2.4G frequency band, the wavelength being a free space wavelength corresponding to a center frequency of Wifi 2.4G.
5. The antenna structure of claim 4, wherein the ground point is located at an intersection of a line of symmetry of the annular radiator and any side length of the annular radiator, the intersection being a strong current point when the first radiation mode is a two-by-one wavelength radiation mode.
6. The antenna structure of claim 1, wherein the annular radiator comprises one of a rectangular radiator, a circular annular radiator, a diamond radiator, and a triangular radiator.
7. The antenna structure of claim 1, wherein the annular radiator comprises rectangular radiators each having a side length of 0.09 wavelengths, the wavelengths being free space wavelengths corresponding to a center frequency of wifi2.4 g.
8. The antenna structure of claim 1, wherein the stub radiator comprises a T-shaped radiating stub.
9. The antenna structure of claim 8, wherein the T-shaped radiating stub comprises a first radiating stub and a second radiating stub, the first radiating stub having a length of 0.06 wavelengths and the second radiating stub having a length of 0.025 wavelengths, the wavelengths being free space wavelengths corresponding to a center frequency of wifi2.4 g.
10. An electronic device comprising the antenna structure of any one of claims 1-9.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746041.0A CN114069207B (en) | 2020-07-29 | 2020-07-29 | Antenna structure and electronic equipment |
| US17/204,043 US11637375B2 (en) | 2020-07-29 | 2021-03-17 | Antenna structure and electronic device |
| EP21165890.1A EP3945632B1 (en) | 2020-07-29 | 2021-03-30 | Antenna structure and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746041.0A CN114069207B (en) | 2020-07-29 | 2020-07-29 | Antenna structure and electronic equipment |
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| Publication Number | Publication Date |
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| CN114069207A CN114069207A (en) | 2022-02-18 |
| CN114069207B true CN114069207B (en) | 2023-08-22 |
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| CN202010746041.0A Active CN114069207B (en) | 2020-07-29 | 2020-07-29 | Antenna structure and electronic equipment |
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| US (1) | US11637375B2 (en) |
| EP (1) | EP3945632B1 (en) |
| CN (1) | CN114069207B (en) |
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| CN114520413A (en) * | 2022-02-24 | 2022-05-20 | 浙江海通通讯电子股份有限公司 | Low-profile terminal antenna |
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| CN105896029A (en) * | 2016-05-01 | 2016-08-24 | 上海大学 | Multiband metal frame cellphone antenna |
| CN107681257A (en) * | 2017-11-10 | 2018-02-09 | 哈尔滨工程大学 | One kind miniaturization multiple-resonant antenna |
| WO2018082558A1 (en) * | 2016-11-01 | 2018-05-11 | 中兴通讯股份有限公司 | Antenna and communication terminal |
| CN111355019A (en) * | 2018-12-24 | 2020-06-30 | 北京小米移动软件有限公司 | Terminal device |
| WO2020134962A1 (en) * | 2018-12-26 | 2020-07-02 | 维沃移动通信有限公司 | Antenna structure and mobile terminal |
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| KR20130031568A (en) * | 2011-09-21 | 2013-03-29 | 한국전자통신연구원 | Radio communication antenna and radio communication device |
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2020
- 2020-07-29 CN CN202010746041.0A patent/CN114069207B/en active Active
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2021
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- 2021-03-30 EP EP21165890.1A patent/EP3945632B1/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114069207A (en) | 2022-02-18 |
| EP3945632A1 (en) | 2022-02-02 |
| US11637375B2 (en) | 2023-04-25 |
| US20220037790A1 (en) | 2022-02-03 |
| EP3945632B1 (en) | 2023-01-18 |
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